Firearm



Patented Dec. 1, 19.25.

T E S OFICE.

FIREARM.

application led March 2S, 1925.

T0 all whom t may concern:

Be it known that I, JOHN D. PEDERSEN, a citizen of the United States,and resident of Jackson, in the county of Teton and State oflllyoiiiiiig, have invented certain new and useful Improvements inFirearms, of which `the following is a specification.

This invention relates to a firing mechanism for firearms and moreparticularly, to a firing pin and ejector construction designed as animprovement on the firing pin and ejector mechanism disclosed in theprior copending application of Crawford C. Loomis, Ser. No. 578,436,filed July 29, 1922.

The said application Ser. No. 578,436- discloses a firing pin andejector mechanism comprising a firing pin which is located centrally ofthe breech block, and an ejector placed in the side of the breech block,these two members being retracted from engagement with the head of theshell in the chamber by a plunger which engages both said members and ismoved rearwardly by a spring which is located between said members. Theassembly is secured in place by a vertical pin engaging a suitablegroove in the ejector. When this pin is removed the ejector, firing pinspring and plunger, and firing pin may be removed from the breech |blockin the order mentioned.

One object of the present invention is to simplify the firing pin andejector mechanism by reducing the number of parts utilized in performingthe firing and ejecting functions.

A. further object 0f the invention is to provide a construction in whicha spring which encircles the tiring pin, is adapted to retract theejector as well as the firing pin.

A further object of the invention is to pro` vide a firing pin andejector construction, the parts of which are effective to retain cachother in place without the aid of pins, screws or other retaining`members.

A. further object of the invention is to provide a tiring pin andejector construction which may be assembled in and removed from thebreech block, merely by relative movement of Ithe part thereof, althoughretained in operative position when the breech block is assembled in thereceiver.

A further obj ect of the invention is to provide improved means formoving the forward end of the ejector inwardly, simultaneously with itslongitudinal movement; this rocking movement of the ejector facili-Seral N0. 19,055.

tating the ejection of light cartridge cases.

A further object of the invention is to provide improved means whichresists the forward movement of the ejector but acts on a projectionextending laterally from the ejector, whereby the ejector is given apivotal movement simultaneously with its forward movement.

With these and other objects in view my invention consists in the novelcombinations and arrangements of parts which are illustrated in thedrawing and will be hereinafter described.

In the drawing, Fig. 1 is an elevation, partly in section of so much ofa firearm as is necessary to show the application of my inventionthereto.

Fig. 2 is an inverted horizontal section through the receiver and breechblock of a firearm embodying my invention, the firing pin and ejectorbeing shown in retracted position.

Fig. 3 is a view similar to Fig. 2, showing the firing pin pressedforward into engagement with the head of the shell by the hammer.

Fig. 1 is a view similar to Fig. 2, showing the position of the firingpin and ejector at the time the empty shell is ejected.

Fig. 5 is a front elevation of a breech block embodying my invention.

The chamber 10 at the rear end of barrel 11 is adapted to be closed bya. breech block 12 which is mounted for vertical and longitudinalmovement in the receiver or frame 13. The breech block is held in breechclosing position by the engagement of recoil shoulder 14 thereon withthe lockingjshoulder 15 on the receiver; and is adapted to bereciprocated longitudinally as well as moved into and out of lockingengagement With the locking shoulder 15, by an .action bar 16.

The breech block comprises a longitudinal recess adapted to receive anejector 17, and a longitudinal bore adapted to receive a tiring pin 19.A firing pin and eject-or spring 20 encircles anV intermediate sectionof the firing pin, bearing at its forward end against a shoulder 201 inthe breech block, and at its rear cnd against a shoulder 21 on thefiring pin. The firing pin comprises a notch or recess 22 whichterminates at its rear end in a square shoulder 23, and at its forwardend in the laterally receding shoulders 24 and 25.

Integral with the ejector' 17 is a laterally extending foot 26 adaptedto be received in comprises the angularly disposed faces 241.

and 251, the inclination of these faces being somewhat lessthan theinclination of thev shoulders 24 and 25, whereby relative lateralmovement of the ejector foot with respect to the firing pin isfacilitated. A forward extension 27 at the end of the foot engages theside of the firing pin opposite the ejector when the parts are in theirnormal retracted position. (Fig. 2.) The ejector foot also comprises ashort downwardly extending stud 261, whose end contacts with the floorof the breech block recess, thereby retaining the foot against downwarddisplacement. The notch 22 in the firing pin is wider than the width offoot 26, whereby the firing pin is permitted to move forwardindependently of the ejector when struck by the hammer.

It will be seen that this construction ref tains both the firing pin andthe ejector in the breech block, without the aid of screws, pins, orother securing devices. To assemble the mechanism in the breech block,the spring is placed on the firing pin, and the firing pin inserted fromthe rear end of the ,breech block. While the firing pin is held forwardagainst the pressure of the spring the ejector is placed in its slot,the foot 26 passing thru the notch 22'. The firing pin is then permittedto move rearwardly under the action of spring 20, the shoulders 24 and25 engage the faces 241 and 251 on the ejector foot 26, and the ejectormoves rearwarde ly until the rearward edge of foot 26 engages the end ofthe slot in the breech block. The forward extension 27 of foot 26 is nowengaged by the side of the firing pin, thereby retaining the ejector inplace. Wlhenthe ejector is in its normal retracted position thecartridge head engaging lug 28 at its forward end is in contact with theinner edge of the ejector slot. The rearward edge of lugy 28 is beveledto form a cam 29, which controls the pivotal movement of the ejector,occurring simultaneously with its forward movement.

The ejector is adapted to be operated when the breech block isretracted, by engagement with anabutment in the end of the receiver 13.In this operation the ejector not only moves forward, but as cam 29passes forward out of the breech block, rotates about ltsrear end to theposition shown in Fig. 4, owing tothe fact that forward movement of theend of foot 26 is restrained by spring 20. The foot 26 moves laterallywith respect to. the firing pin to the osition shown, in Eig. 4. Thepoint at which the parts associated with the spring 2O engage the foot26 being removed some distance from the 1onf gitudinal axis of theejector, a torque of considerable magnitude tending to rotate theforward end of the ejector inwardly is se"l Cured. An inward movement ofthe for,

illustrated my invention -as applied to a center fire gun, it isobviously applicable to rim vfire guns as well. In this and in allrespects the invention is to be construed as extending to all equivalentdevices falling withln the scope of the appended claims.

I claim: j 1.-In`a device of the character described,

in combination, a firing pin, an ejector, and

a spring for retra-cting said ejector, said spring surrounding said rlngpin.

2. In a device of the class described, in combination a firing pin, anejector and a commony spring for said firing pin and ejector, saidspring surrounding said firing pin.

3. In a device of the class described in combination, a firing pin, anejector, a springsurrounding said ringpln', and means including a partof said firing p1n whereby said spring is effective to retract saidejector.

4. In a device ofthe character described,

in combination a firing pin, a spring asso.

ciated with said firing pin, an ejector, and

means associated with said ejector adapted to engage apart of saidfiring pin, where by said springis effective to retract Sald ejector.

5. In a device of the character described, in combination -a firing pincomprising a transverse slot, an ejector, and means associated with saidejectoradapted to engage in said slot.

tracted by a spring surrounding the firing pm'.

7 In a firearm, in combination, a breech block, a firing pin and anejector mounted in said breech block and interengaging parts on saidfiring pini and `said ejector normally effective to retain said firingin and ejector inv place in said breech block.

8. In a device of the ch-aracter described, in combination, an ejectorhaving longitudinal and rotary movements, a firing pm and meansassociatedwith said firing pin adapted to control the rotary movement ofsaid ejector.

9. In a device of the character described, an ejector, means for movingsaid ejector orward, a firing pin, and means associated with saidvfiring pm adapted to restrain the forward movement lof a part of saidejector,

vthereby producing -a rotation of the ejector.

10. 111 a realm, in @alabnatoa breech block adapted to contain a firingpin and an ejector, a firing pin and an ejector contained therein, and.means comprising a part of said firing pin eectve to retain said ejectorin place in said breech block and to release said e'ector for separateremoval from said breec tive thereto.

11. In a rearm, in combination, a breech block adapted to contain afiring pin and an ejector, a firing pin and an ejector contained thereinand releasable for removal therefrom by movement relative to each other.

12. In a firearm, in combination a breech block adapted to contain afiring pin and an ejector, a tiring pin and ejector contained therein,and means whereby said ejector is releasedl for removal from said breechblock by movement of said firing pin relative to said ejector.

13. In a firearm, in combination a breech block, a rin pin and `anejector retained in said breec block, and means whereby block bymovement relamovement of said firing pin relative to said ejectorreleases the ejector for removal from said breech block, and removal ofthe ejector releases the firing pin for removal from the breech block.

14. In a firearm, in combination a breech block, a slidable androtatable ejector contained in said breech block and means forcontrolling the rotational movement of the ejector comprising a springpressed foot extend-ing laterally from said ejector, and a cam at theforward end of said ejector.

15. In a firearm, in combination a breech block, an ejector contained ina slot in said breech block, means for imparting a longitudinal movementto said ejector, means for rotating said ejector, simultaneously withits forward movement comprising a spring adapted to act on a lateralextenslon of said ejector, and means for controlling the rotationalmovement of said ejector comprising a cam at its forward end.

JOHN D. PEDERSEN.

